Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 6 - Work and Energy - Check Your Understanding - Page 152: 5

Answer

There is no work done by a net external force on the boat.

Work Step by Step

The work-energy theorem states that $$W=\frac{1}{2}m(v_f^2-v_0^2)$$ $W$ is the work done by a net external force on the object If the sailboat moves at a constant velocity, $v_f^2-v_0^2=0$, so $W=0$. Therefore, there is no work done by a net external force on the boat.
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